Ames, William L. (William Lewis), 1855-, Wischmeyer, Carl · New York, McGraw-Hill book company, inc.; [etc., etc.] · leaf 63
a point of the requiredline of intersection. Case e.—When neither pair of traces meets within thehmits of the drawing (Fig. 93). In this case two auxiliaryplanes are taken, giving two points in the required line ofintersection. 52 DESCRIPTIVE GEOMETRY Problem 39.—To find the point of intersection…
Geometry, Descriptive
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